



988 The American Naturalist. [November, 
: | a Ma@tusca. 
Conxuin, E. G—Preliminary note on the embryology of 
Crepidula fornicata and Urosalpinx cinerea. J. H. U. Circ., X., 
p. 89, 1891. 
_WATASE, S.—Studies on Cephalopods. I. Cleavage of the 
ovum. Journ. Morp., IV., p. 247, 1891.. 
STEARNS, R. E. C.—On the distribution of Planxorbis bicarinatus. 
West Am. Scientist, VI., p. 110, 1889. 
Pirspry, H. A.—New and little-known American molluscs, 
No HiL Proc A. N:S. Phila., 1890, p. 296.—Vide Am. NAT., 
-XXIV., pp. 354, 814. New forms are: Pupa syngenes (Ariz.) 
Zonites shimeki (Lowa), Vaginulus EEI (Bermuda), Goniobasis 
crandallii (Ark.). 
Yates, L. G—The Mollusca of Santa Barbara county, 
California. Bull. Sta. Barbara Soc. Nat. Hist., L, p. 37, 1890.— 
Nominal list. 
a -New shells from the Santa Barbara channel. Bull. Santa. 

- Barbara Soc. Nat. Hist., I., p. 46, 1890.—New species are: Venus 
fordii, Vertagus lordu, Vermiculus fewkesi. 
-Cockerett, T. D. A—The Virginia had of Helix wince git 
| Nautilus, III, p. 73, 18809. 
Baker, F. C.—Description of a new species of Ocinebra, 
Nautilus, III., p. 80, 1889.—0O. jenksii ; hab. unknown. 
Stearns, R. E. C_—Helix (Stenotrema) hirsuta Say, on the West 
Coast. Nautilus, III., p. 81, 1889. 
Carpenter, H. the shell-bearing Mates of Rhode 
Island. Nautilus, u., p- 82, 1889. —Continued. 
Pirspry, H. A—Note on a southern Pupa. Proc. A.N. > 
‘Phila., 1890, p. 44.—P. hordeacella (Tex., Ariz., Fia) oe 
_ Baxrr, F. C—Remarks « on Urosalpine perrugatus. Proc. : 
A. N-S. Phila., 1890, p. 46. 
Oe PILSBRY, H. A—On a new Bulimulus. Ries A.N. S. Phila, i 
a 1890, p. 63.—B. ragsdalei Sar a > 
Baker, F. C.—On the modifi 



